199.04% is the change from 311 to 930
Calculation steps:
[( 930 - 311 ) ÷ 311] x 100 = 199.04%
Formula
Percentage change = [(930 - 311) / 311] x 100
Subtract the new number by the original number
930 - 311 = 619
619 ÷ 311 = 1.9903536977491962
1.9903536977491962 x 100 = 199.04%